北纬科技龙虎榜数据（8月14日）

Group 1 - The stock of Beiwai Technology increased by 1.90% with a turnover rate of 54.67% and a trading volume of 2.981 billion yuan, showing a volatility of 19.26% for the day [2] - Institutional investors net sold 80.023 million yuan, while the total net selling by brokerage seats amounted to 96.345 million yuan [2] - The stock has appeared on the Dragon and Tiger list seven times in the past six months, with an average price increase of 5.54% the day after being listed and an average increase of 21.76% over the following five days [3] Group 2 - The main capital outflow for the stock today was 401 million yuan, with a large single outflow of 245 million yuan and a big single outflow of 157 million yuan [3] - The top five brokerage seats accounted for a total transaction volume of 573 million yuan, with a buying amount of 198 million yuan and a selling amount of 375 million yuan, resulting in a net selling of 176 million yuan [2][3] - Specific brokerage seats involved in trading included multiple branches of Dongfang Caifu Securities and Guotai Junan Securities, with significant net selling from institutional specialized seats [3]